Lithium-ion battery pack for easy installation

Abstract

The present invention directs a lithium-ion battery pack which is easy to install comprises an cell and a case packaged outside the cell, wherein the cell is packaged in a side case, a bottom plate is packaged at the bottom of the side case, a top plastic part is fixed at the top of the side case, a plastic part rear cover plate is packaged to an opening portion of the side of the top plastic part, all shores of the top plastic part are inserted into the hole positions of the side case respectively, the bottom edge of the top plastic part is jointed with the edge of the top of the side case, an output interface part and an input interface part are installed at a internal position of a side of the top plastic part, which faces towards the opening portion of the side of the top plastic part, the output interface part and the input interface part are fixed on a patch board in a circuit mode respectively, the patch board is electrically connected to an input circuit and an output circuit of the cell respectively, all shores of the plastic part rear cover plate are inserted into the hole portions of the top plastic part respectively, and the plastic part rear cover plate is packaged on the opening portion of the side of the top plastic part.

Description

FIELD OF THE INVENTION[0001]The present invention relates to the technical field of lithium-ion battery, and more particularly, to a lithium-ion battery pack for easy installation.BACKGROUND OF THE INVENTION[0002]At present, the plastic case is always used for assembling the battery pack in the industrial application of lithium-ion battery pack, and the structure of such plastic case comprises a cover plate and a chamber with an opening at one side. When it is assembled, placing the cell in the chamber, and fixing the input and output circuits respectively on the chamber, the input / output circuits and the input / output interface parts are respectively electrically connected together; then, packaging the cover plate on the opening of the chamber.[0003]During the research process of the present invention, the applicant found some defects in the prior art as given:[0004]For the first, the installation of case with such above structure in the lithium-ion battery is a very complex process...

AI Technical Summary

Benefits of technology

The present invention provides a lithium-ion battery pack for easy installation. The battery pack includes a cell and a case packaged outside the cell. The case is made up of a bottom plate, a side case, a top plastic part, and a plastic rear cover plate. The side case is connected to the bottom of the top plastic part, and the top plastic part is connected to the plastic rear cover plate. The arrangement of hole parts on the side case and top plastic part makes the connection stronger and more secure. The battery pack is designed to improve assembly efficiency and prevent scratches or defective products. The technical effects of the invention include easy installation, improved assembly efficiency, and secure connection between parts.

Problems solved by technology

For the first, the installation of case with such above structure in the lithium-ion battery is a very complex process, especially the connection of input / output circuits located on the top of cell, which causes the low assembling efficiency and complex process.

In addition, when applying to a high rate battery pack which is discharged by a large current (the current reaches to 100˜200 A), such plastic case in the prior art cannot dissipate the heat efficiently since the temperature of battery pack is sharply increased during the battery pack is discharged by a large current during the use, and the produced heat has been stay in the plastic case, not dissipated as quickly as possible; however, if the battery pack is discharged by a large current in a long time, the lifetime of lithium-ion battery pack will be effected.

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